Electrical primer.



J. M. HOBB & U. s. TRAINS. ELECTRICAL PRIMER.

APPLICATION FILED SBPT.25, 1911.

1,085,425, Patented .12.11.27, 1914 l UNITED sTATEs PATENT oEEIcE.

JOHN MORBIS HOBE AND UBAL STILWELL TRAUB, OF YONKERS, NEW YORK.

ELECTRICAL PRIMER.

Specification of Letters Patent.

Patented J an. 27, 1914.

To all whom 'it may concern Be it known that we, JOHN -Monms HoBE and URAL STILWELL TRAUE, citizens of the United States, residing at Yonkers, in the county of Westchester and State of New Y0rk,have invented certain new and useful Improvements in Electrical Primers, of

' an explosion, being heated and partially or wholly vaporixesed.v

The invention consists principally in the special electrical means for heating the fuel, as hereinbefore premised, and the advantages of the invention will appear more fully hereinafter.

For a full understanding of the present invention, reference is to be had to the following description and tothe accompanying drawings, in whichf- Figure 1 is a view showing a primer comprising the invention connected up with the intake manifold of an explosive engine, the parte` of the primer being shown in section and the push-button switch controlling the operationof the primer bclng also shown in section. Fig. 2 is a diagrammatic view showing more in detail the construction of the push button and circuit connections with the electromagnet and heating coils.` Fig. 3 is a diagrammatic view showinga modified form of switch. 'for controlling lthe operation ofthe primer.

Describing the invention in detail, A de-` notes a .casing or tubular member. of any desired form,y having a valve seat 1 at one and, with 4which'end is connected a union 2 havrving a suitablepassage 3 to which the liquid fuel "is fed from a suitable. tank or other receptacle. A. valve 4 ,1s normally seated against the valve seat 1, closing the open` ing adjacent to said seat, said valve being carriedV by a stern 4: having threaded connection at one end with the core 5. A coiled tension spring 6 normally holds the valve 4 lin closed position, and connected with the vupper portion of the member A is a second casing B in which the core 5 is arranged and adapted to reciprocate. Surrounding the casing B is a. coil of resistance wire 7, hereinafter termed'a heating coil, said wire being included in an electric :.,rcuit comprising the circuit wires 8 arl 8I which lead to a battery or batteries 9 and a switch ;C. The heating coil 7 is provided for thc purpose of heating the casing B and the hydrocarbon which passes'through said casing and a pipe 10 to the manifold 11, from which it passes to the cylinder of the motor. Insulation 12 surrounds the heating coil and wound about said insulation is a line wire 13 providing a magnetizing coil.

l'nclosing the several parts' B, 7 1 2 and 13, is a cap or housing 14. The electrical -circuit including the wires .8. and 8 is conshown at 18', and the electriiication of the coils 7 and 13 is controlled by the switch C. The switch C preferably comprises a push- .button 15, a stationary contact disk 16, and i two movable Contact disks designated 17 and 18, said movable disks being connected with :the circuit wires 8* and 8, respectively, as shown in the drawings, in such a manner that initial movement of the push button 15 i will cause contact ofthe disks 17 and 18 and lclose thecircuit including the heating coil '7 whereupon the casing B will be quickly heated. Subsequent movement of the push button 15 will cause contact of the disks 16 and 17. and electriy the coil 13, which coil electro-mgmt. l

As shown most clearly in Fig. 2, the disks 16, 17 and 18 of the switch C are normally held apart by means cfintelposed springs 17 whichsprings preferably bear against washers 18 ofan insulating substance, the severalfdisks therefore being normally not electrical connection, The circuit'wire 8 Enected with the magnetizing coil 13, as

in connection with. the core 5 constitutes the .connects the coil 7 with the outermost diskof the switch C, the wire 8 connects the innermost disk of said switch with the coil 13, and the Wire 8a is a return le-ad common to both coils and including the battery 9. The cooperation ofthe parts of the switch C will be` evident upon reference to Fig. 2 `and the previous description.

When the electric current passes through the coil 13, the core 5 is attracted and moved longitudinally in the casing B4 a suflicient extent to open the valve 4, whereupon the hydrocarbon will pass from the passage 3 through the casings A and B, and the pipe 10 to the intake manifold 11 of the motor.

V-Vhile the push button 15 is maintained depressed to its maximum extent, the casing B is kept heated and heating of the fuel, whereby the latter is vaporizedI orI partially vaporized, is maintained. When pressure on the button 15 is relieved, said ,button is restored to its original position,

rendering the primer inoperative.

A modified form of switch for use in connection with the inventionis shown in the diagrammatic view of Fig. 3. In this construction, when the contact `lever or arm 19 is connected with the Contact 20, the circuit 'through the heating coil 7 is closed, whereas, when the level` 19 is swung into a position contacting with the contact 21, the magnetizing coil will be electrified. The lever 19 is adapted to make contact with the contacts 20 and 21 by means of a segmental bar 19 which is attached to the lever. IThe bar 19 is of suicient length to connect the two cont-acts 20- and 21 together when the lever 19 is in a predetermined position, and when the`contacts 20 and 21 are so connected, it will be apparent that thecircuits inand the valve 4: maintained in open position as well as while the heating coil is performing its heating functions. Movement of the lever 19 in the direction of the arrow in Fig. 3 causes contact of parts 19 and 21, whereby the valve 4 will be opened initially, and the further movement of the lever permitting the part 19 to connect the contacts .20 and 21 accomplishes a subsequent heating' of the motive fluid by the coil 7. If the lever 19 is moved in a direction opposite that indicated by said arrow in Fig. 3, the above operation is reversed in that the heating action of coil 7'is started by initial cooperation of'parts 19 and 20, and the valve 4f is subsequently opened when the last described movement of the lever 19 is continued to connect the contacts 20 and 21. Fig. 3 is merely diagrammatic, of course, and the part-s 19 and 19 represent a switch which will establish and maintain connection with the contacts 20 and 21 by Jfriction.

By the arrangement of parts of the switch shown in Fig. 3, the operator may,l

at will, heat the casing B preliminary to the 66 passage of the hydrocarbon therethrough,l

or subsequent to said passage.

As shown most clearly in Fig. 1 of the drawings, auxiliary means for heating the fuel may be employed by providing an electric heating device 25 surrounding a portion or branch of the manifold 11, said device 25 including a resistance coil connected by suitable wires 8" to the circuit wires 8a. A switch 26 connected with the wires 8 may be operated to turn the heater 25 on or oli' as desired. It will be apparent that the heater 25 may be operated with, or

Vindependently of the primer, as is described herein.

Having thus descrlbed the lnventlon, what we claim as new 1s:

1. In a primer for explosive engines, inl

combination, hydrocarbon supply means, a heater, a casing having a passage connecting the supply means with the heater, a valve normally vclosing said passage, and a common controlling device for the valve and heater and operable to open the valve and to cause heating of the hydrocarbon either before or after the initial charge of hydrocarbon has passed through the heater.

2. In a primer for explosive engines, the combination with a hydrocarbon supply means, a heater, a casing having a passage connecting the hydrocarbon supply with t e heater, a valve in said passage normally closing. the same, and means common to the heater and valve operable to open the valve, to start the heater either before or after opening of said valve, and to maintain the valve open and the heater in opera- 1 tion. cluding both the coils 7 and 13 will be closed 3. In an electrical primer for explosive engines, the combinationv with a casing, means for supplying a hydrocarbon to said casing comprising a passage, a valve normally closing said passage, an electromagnet comprising a core movable in the casing and connected with the valve, a heater for said casing comprising-a coil', an electric circuit including said electromagnet and heatin coil, means for closing a portion of sai circuit to render the heating coil operative and for electrifying said magnet to cause movement of the core and the valve connected therewith, and means for supplying hydrocarbon from said casing to a motor.

11. In' an electrical primer for explosive engines, the combination with a casing having hydrocarbon supply means comprising a passage, a valvearranged in said passage, a spring coacting with the .valve to hold the same in a predetermined position, an electromagnet comprising a coil surrounding said casing, anda core within the casing, a heating coil also surrounding the casing and arranged adjacent to the coil of the electromagnet, circuit Wires` connected In testimonywhereof We ax our signato sind colls, current generatmg means tyres 1n presence of two wltnesses.

lfor the coils,.a return lead connected to the JOHN MORRIS HOBE. l boils, and a switch connected with the cirv URAL STILWELL TRAUB.

cuit wires and return lead and operable to Witnesses: close the vrespectivey circuits established by J OSEPH SCHOLL, the latter 'forthe purpose set forth. HARRY E. PURDY. 

